Product Description: 1. Precise Fit for GM Trucks: Exclusively designed for 2020+ GM Silverado 2500/3500 and Sierra 2500/3500 with 11.5″& 12″ dual rear wheel axle hubs, ensuring a tight grip on full floating hub nuts. 2. Durable Construction: Made from hardened steel with a black oxide finish, resisting wear and corrosion for long-lasting performance even under heavy use. 3. 9-Pin Design for Secure Engagement: The 9-pin structure locks perfectly with circular hub nuts, preventing slippage during removal or installation of full floating hubs. .